– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Thu 09 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Thu 09 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Thu 09 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 17°C on Fri afternoon, min 7°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 28mm), mostly on Tue night. Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 10°C on Sun afternoon, min 0°C on Tue night). Wind will be generally light. | |||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  | |  |  | | | | | | |  |  | |
clear | clear | clear | some clouds | cloudy | light rain | light rain | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | light rain | light rain | light rain | light rain | mod. rain | mod. snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | |
— | — | — | — | — | 1.6 | 1.8 | 0.8 | 0.5 | 0.2 | 0.7 | 0.9 | 1.1 | 1.4 | 1.6 | 3 | 8 | 10 | |
max °C | 13 | 16 | 13 | 15 | 17 | 13 | 10 | 10 | 8 | 8 | 10 | 8 | 5 | 5 | 5 | 4 | 4 | 4 |
min °C | 9 | 16 | 11 | 12 | 15 | 10 | 9 | 9 | 7 | 7 | 9 | 5 | 4 | 5 | 3 | 3 | 3 | 0 |
9 | 16 | 11 | 12 | 15 | 10 | 9 | 9 | 7 | 7 | 9 | 4 | 2 | 4 | 1 | 0 | -1 | -3 | |
2450 | 2700 | 2800 | 2650 | 2600 | 2350 | 2050 | 2000 | 1750 | 1750 | 1900 | 1400 | 1150 | 1300 | 1100 | 1050 | 1100 | 750 | |
Cloud base (m) | 9250 | 9300 | 9100 | 1450 | 550 | 700 | 800 | 600 | 650 | 800 | 600 | 600 | 600 | 600 | 550 | 550 | ||
 | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:18 | — | — |
 | — | 7:50 | — | — | 7:51 | — | — | 7:52 | — | — | 7:53 | — | — | 7:55 | — | — | 7:57 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 5mm), mostly falling on Sat morning. Very mild (max 17°C on Fri afternoon, min 7°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 28mm), mostly on Tue night. Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 10°C on Sun afternoon, min 0°C on Tue night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.